blogs MU login link at the top not working

Hello
I have my site installed at http://selfhelpblogs.org and there is a link on the header for "login".
the problem is that when clicked it takes users to the admin blog instead of a login page.
how do I fix that?
please use detailed explanation since I am not a developer, please tell me what to change and where so I know what to do.
Thank you so much in advance.

It is not in the options section of the theme, I have looked for it over and over.
now when I hover over the link it tells me that "you need to create a login page in page"
so I assume I need to create a page called login
DONE
now, the link still says the same
AND i have no clue what to put in it

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